Adjustable window-screen.



H. IVI. OPITZ.

ADJUSTABLE WINDOW SCREtN.

APPLICANON HLED MAR. 1|. wm

1,299,016.. Patented A p1'. l, 19ML HERMAN M.V orrrz, or NonWIcH, CONNECTICUT.

ADJUSTABLE WIN'I)OW-SCIELEEN'.`

Specification of Letters Patent.

Patented Apr. 1, 1919.

Appnation mea March 11, 191s.` serial No. 221,781.

To all whom it may concern Be it known that I, HERMAN M. Orrrz, a citizen ofthe United States, residing at 'N orwich, in the county of New London, State of Connecticut, have invented certain new and useful Improvements in Adjustable Window-Screens; and I do hereby declare the -following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which 1tl appertains to make and use the same.

This invention 'relates to improvements in window screens and particularly to adjust` able window screens.

One object of the present inventionis to provide a novel and improved construction of a window screen wherein the frame is slidably adjustable to fit window frame open- In the drawing:y

Figure 1 is an elevation of a window sc-reenmade in accordance with my invention.

Fig. 2 is a horizontal longitudinal sec-l tional view taken on the line "2-2 of Fig. 1. Fig. 3 is aI vertical transverse sectional view taken on lthe line 3--3 of rig. 1.

Fig. 4 is al vertical longitudinal central sectional View through one corner of they frame showing the roller support and the sliding connections between the sections of the frame. v y l Fig. 5 is a lan view 0f the blank from which the sectlon 11 of the'frame is formed. Fig. 6 is a lan view=of the blankfrom which the section 10 of the frame is formed.

Referring particularlyl to the accompanying drawing 10 and 11 represent, respec tively' the two sections of the screen frame. The section 10 is formed from a single metal blank and includes the vertical end member 12 and the parallel arms 13 which extend from the ends of said member 12. It will be noted that-the end member 12 and the arms 13 are 'hollow and are 'rectangular in cross section the wall of each portion which is dlrected toward the interior of the frame being formed with a longitudinally extending p slot 14. In the outer wall of each of the arms 13 thereis formeda longitudinal slot 15, the urpose of which will appear lhereinafterf Xtending from the sidewalls of the slot of the end member 12, and in the direction of the center of the frame, are the lips or flanges 16 between which is secured the adjacent end of the strip of screen fabric 17.

The other section 11, of the frame includes the hollow. end member 18- and the hollow parallel arms 19 which extend from the ends of said end member. The end member and arms are preferalbly rectangular in cross section and of slightly ,greater area than the arms of the section 10, whereby said arms of the section l0 are disposed slidably within the arms of the section 11. The inner walls of the larms 19 are formed with slots '20 which aline with the slots of the arms 13 to receive slidably therein the longer marginal edges of the screen cloth. The outer wall `of each of the arms 19 has formed thereon a struck-in lug 21 which is disposed for slidable engagement in the slot 15 whereby the arms of the two sections are held in proper relation and limited in their longitudinal slidable movements. The inner wall of the end member 18 is formed with a slot 22, which connects, at its ends, with the slots'of thearms 19. VStruckfinwardly from the upper and lower end portions of the outer wall of the end member 18 are the aperturedlugs 23, and disposed longitudinally within this end member 18 is a roller24, the pintles 25 of which are engaged through the apertures of the lugs 23. The remaining end of the strip of screen cloth is secured to v and arranged to be wound on this roller. The rollervis preferably of the spring shade roller type, whereby when the sections of the screen frame are pulled apart the roller will permit the screen to unwind, and when the sections are pushed together, the roller will wind up the excess of the screen cloth, thereby filling up 'the entire openin in the screen frame with a," continuous `s eet or strip of screen cloth, and thus obviating the usual crack oropemng between the sections of the ordinary screen frame wherein each section carries a separate piece of vscreen cloth.

It will be noted that the inturned flanges of the end member 12 are formed With teeth 26 which firmly grip the end of the screen fabric and hold the same Within the slot of the end member. i

Attention is called to Fig. 5, Which shows the blank from which the section .10 is formed. It will be noted that at two points, f

27, on each of the longer marginal edges of the blank, there are formed the right-angu- -lar notches the Walls of which meet to formA thelines or joints 28, when the section is properly folded into the condition shown in Fig. 1. j i

The blank, Fig. 6, of the section 11, is

similarly formed With the notches 29 Which 1. A blank for a Window screen section includ-ing kan elongated strip of metal hav- 2. A blank for 'a' Window screen section including an'elongated strip having longitudinal parallel fold lines, the opposite longer sides of the strip having opposite disposed right angular notches Which divide the strip into three sections, the. intermediate section having struck up lugs adjacent its ends, the end sections each having a struck up lug adjacent its out'er end, the strip having transverse foldv lines connecting the inner angles of the notches.

In testimony whereof, I afHX my signature, in the presence of two Witnesses.

\ .HERMAN M. OPITZ.

Witnesses:

J -MARGARETHE OPrrz,

LYDIA J. OPI'rz. 

